1、proper

适宜的；合适的；适当的；恰当的

Two out of five people lack a proper job.

每五人中有两人没有正当的工作。

I always cook a proper evening meal.

我总是把晚餐做得很丰盛。

正确的；准确的；最合适的

The Supreme Court will ensure that the proper procedures have been followed.

最高法院将确保程序的履行合乎规范

He helped to put things in their proper place.

他帮忙把东西放置妥当。

得体的；合乎体统的；正派的

In those days it was not thought entirely proper for a woman to be on the stage.

那个时候，女性登台表演被认为不太得体。

It is right and proper to do this.

这么做很得体。

2、concern

忧虑;担心

The group has expressed concern about reports of political violence in Africa.

该团体对有关非洲政治暴力的报道表示关切。

The move follows growing public concern over the spread of the disease.

针对公众对该疾病的不断蔓延日益担忧，从而出台了这一举措。

令人担忧的事实(或情况)

His concern was that people would know that he was responsible.

他担心大家会知道是他的责任。

Unemployment was the electorate's main concern.

选民关心的主要是失业问题。